參數(shù)資料
型號: HB288016MM1
廠商: Hitachi,Ltd.
英文描述: MultiMediaCard 16 MByte
中文描述: 多媒體16字節(jié)
文件頁數(shù): 10/79頁
文件大?。?/td> 233K
代理商: HB288016MM1
HB288016MM1
10
Card Specific Data (CSD)
The card specific data register describes how to access the card content. The CSD defines card operating
parameters like maximum data access time, data transfer speed.
The CSD Fields
Name
Field
Width
CSD-slice Value
Type
CSD structure
CSD_STRUCTURE
2
[127:126]
1
read only
Spec version
SPEC_VERS
4
[125:122]
2
read only
Reserved
2
[121:120]
0
read only
Data read access-time-1
TAAC
8
[119:112]
0x0E (1 ms)
read only
Data read access-time-2 in
CLK cycles (NAC*100)
NSAC
8
[111:104]
0x01 (100 cycles)
read only
Max. data transfer rate
TRAN_SPEED
8
[103:96]
0x2A (20 Mbit/s)
read only
Card command classes
CCC
12
[95:84]
0x0FF (class 0, 1,
2, 3, 4, 5, 6, 7)
read only
Max. read data block length
READ_BLK_LEN
4
[83:80]
0x9 (512 bytes)
read only
Partial blocks for read
allowed
READ_BLK_PARTIAL
1
[79:79]
‘1’*
1
(Enabled)
read only
Write block misalignment
WRITE_BLK_MISALIG
N
1
[78:78]
‘0’ (Disabled)
read only
Read block misalignment
READ_BLK_MISALIGN 1
[77:77]
‘0’ (Disabled)
read only
DSR implemented
DSR_IMP
1
[76:76]
‘0’ (Disabled)
read only
Reserved
2
[75:74]
0
read only
Device size
C_SIZE
12
[73:62]
0x7AB
(16 MByte)*
2
read only
Max. read current at V
DD
min VDD_R_CURR_MIN
Max. read current at V
DD
max VDD_R_CURR_MAX
Max. write current at V
DD
min VDD_W_CURR_MIN
Max. write current at V
DD
max VDD_W_CURR_MAX
Device size multiplier
3
[61:59]
0x5 (35 mA)
read only
3
[58:56]
0x4 (35 mA)
read only
3
[55:53]
0x5 (35 mA)
read only
3
[52:50]
0x4 (35 mA)
read only
C_SIZE_MULT
3
[49:47]
2 (16 MByte)*
3
read only
Erase sector size
SECTOR_SIZE
5
[46:42]
0 (512 Bytes)
read only
Erase group size
ERASE_GRP_SIZE
5
[41:37]
0x0F (8 kByte)
read only
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